Mitering-machine.



W. R. POX (2M. LUND.

MITEBING MACHINE. APPLICATION FILED PEB.11, 1907.

Patented Dec. 8, 1908.

Ily /QQEOWS, iT w I lbl a I v Witnesses:

-UNITED STATES PATENT OFFICE.

WILLIAM R. FOX AND MATTHEW LUN D, OF GRAND RAPIDS, MICHIGAN, ASSIGNORSTO FOX TYPEWRITER COMPANY, OF GRAND RAPIDS, MICHIGAN.

MITERING-MACHINE.

Specification of Letters Patent.

Application filed February 11, 1907.

Patented Dec. '8, 1908.

Serial No. 356,933.

To all whom it may concern:

Be it known that we, WILLIAM R. Fox and MATTHEW LUND, citizens of theUnited States, residing at Grand Rapids, in the county, of Kent, Stateof Michigan, have invented certain new and useful Improvements inMitering-Machines, of which the following is a specification.

This invention relates to improvements in miter-cutting machines,particularly to the style known as the Fox trimmers.

The objects of this invention are: to provide improved supports or gagesfor crown and other irregular shaped moldings or parts,

:5 whereby they may be properly and securely supported and trimmed bythe usual knife of the Fox trimmer, such as illustrated in Patent No.893,790, dated December 4:, 1888, which we have herein styled the FoXtrimmer, or Fox mitering machine.

Objects pertaining to details of construction will definitely appearfrom the detailed description to follow.

We accomplish the objects of our invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of our invention is fully illustratedin the accompanying drawing forming a part of this specification, inwhich: I

Figure 1 is a transverse detail sectional view through a Fox miteringmachine, embodying our improvements, taken on a line corresponding toline 11 of Fig. 2; Fig. 2 is a plan view of the right-hand end of a Foxtrimmer, embodying the features of our invention; Fig. 3 is an enlargeddetail transverse sectional plan view taken on line 44 of Fig. 1,showing the details of the adjustable clamp on the triangular block; andFig. 4 is an enlarged detail sectional elevation view, taken on line 44of Fig. 2.

In the drawing, the sectional views are taken looking in the directionof the little arrows at the ends of the section lines, and

similar letters of reference refer to similarvided at the top which issupported by the arm F secured to the table A'by the screws f and isadjusted nicely in position by the set screw f.

The knife carriage is actuated by any wellknown means to carry the knifeagainst the block or material to be cut. Besides the usual swinging gageC which is adjustable to different positions on the table A, by theusual means, we provide a triangular gage block G which is clamped inplace on the table by a suitable clamp I which is secured to the toprail F by the clamping screw 2', and a clamping screw i engages the. topof the triangular gage block G and holds it securely against the tableA.

A suitable groove is provided on the table for effectively locating. thetriangular gage block G by en aging a key in a groove in saidgage-block. vertical slot g is in both faces of the triangular gageblock G and a clamping block G is provided that is adjustable up anddown on each of said faces of the triangular block G.

A lug 9 extends from this clamping block G into the slot q in the faceof the block. A vertical rock shaft H with eccentric journals H at itsopposite ends which is supported by bushing bearings h at its oppositeends, extends through a round'hole in the lug g. The upper end of therock shaft H is slotted so that it can be turned by a screw-driver and,owing to the eccentric bearing, the rotation by a screw-driver causes itto draw the clamping block G securely against the face of the triangulargage block G, positively locating it at any desired elevation.

Inuse, when it is desired to cut, a crown molding as J, to a miter, theadjustable swinging gage O is swung into the proper position, themoldingplacedagainstit, as indicated in Fig. 2, the triangular gageblock G is carried against the molding at the proper position and isclamped in position by the clamp I. The clamping piece G is then forcedagainst the'upper side of the molding and locked in position by turningthe vertical rock shaft H in its eccentric bearings, when the knife willtrim the molding effectively, cutting it to a proper miter.

We desire to remark that our invention pertains to the means heredescribed broadly considered as well as to the specific details.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent, is:

1. In a mitering machine, the combination of a table A; a top guide railF secured thereto by suitable means: a knife carriage B an adjustable gae C; a triangular block G with a clamp I on t e top rail F for clampinsaid block upon the table A; an adjustable 0 amping block G on the faceof the triangular block G, with a lug g thereon extending into a slot gin the face of said triangular block, and a Vertical rock shaft H witheccentric journals H in suitable bearings, extending through a hole insaid lug g, for drawing the clamping block G securely against the faceof the triangular block, all co-acting substan- 1l liaglly as describedand for the purpose speci- 2. In a mitering machine, the combination ofa suitable table; a knife with suitable guides at one side of the same;an adjustable gage C therefor; ,a triangular block with suitable meansfor securing the same to said table an adjustable clamping block on theface of said triangular block with means for securing it in place on theface of said triangullar block, coacting for the purpose specifiec 3. Ina mitering machine, the combination of a suitable table; a knife with asuitable guide at one side of the same; an adjustable gage C therefor; atriangular block with suitable means for securing the same on said tablewith one of the faces of the triangle in proximity to the path thereof;an adjustable clamping block on each of the faces of said triangularblock which are at an angle to the path of the knife, coacting for thepurpose specified.

4. In a mitering machine, the combination of a table; a knife suitablyactuated in proximity thereto; a triangular block with means forsecuring it upon said table; a clamping member on the face of the saidtriangular block, having a lug g projecting into a slot in the same; anda vertical rock shaft H with eccentric journals H in suitable bearingsextending in the lug g for securing the clamping block in the face ofthe triangular block, for the purpose specified.

In witness whereof, we have hereunto set our hands and seals in thepresence of two witnesses.

WILLIAM R. FOX. [L. s.] MATTHEWV LUND. [L. s.] Witnesses:

J. DE VLIEG, Jos. B. WARE.

